Pro tip A very wide angle lens stopped right down gives a deep depth of field to create a visual trick, making the jellyfish look much larger than it is.
Caption: A Pelagia noctiluca jellyfish in the north Atlantic, west of the Orkneys, this summer, in a year when many blooms of jellyfish have been reported round the British isles
Photograph: Matt Doggett/www.earthinfocus.com